Window screen



June 19, 1923. 1,459,155

J. P. [00R WINDOW SCREEN Filed Jan. 8, 1921 roller.

Patented June 19, 1923.

JOHN 1?. 1003, OF IPHILADELPHIA, PENNSYLVANIA.

WINDOW SCREEN.

' Application filed January 8, 1921. Serial It'd 435,966.

To all whom it may concern:

- Be it known that I, JOHN P. IooR, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a certain new and useful Improvement inWindow Screens, whereof the following is a specification, referencebeing had to the accompanying drawing.

My invention relates to screens of the type including a web of flexibleforaminous material attached at one end to a spring roller and at theother end to a window sash, in such relation that when the sash isopened, said web is drawn from the roller over the window openingnormally occupied by the sash, and, when the sash is closed, said web isautomatically wound upon said As ordinarily constructed and arranged,such screens have three disadvantages, to wit; first, they cost morethan screens of the rigid frame type. they are more difiicult and,consequently, more costly to install than screens of the rigid frametype, because skilled labor is required for their installation. Third,it is rlifiicult to maintain the opposite vertical 1 edges of the web ofsuch screens in sufiiciently close relation with ordinary window framesto prevent ingress of insects at such edges.

Therefore, it is the general object of my invention to obviate thedisadvantages above contemplated and provide a screen of the classaforesaid which is, first, les costly than an ordinary screen of therigid frame type. Second, which may be installed and removed by anunskilled operator, with the same facility as an ordinary window shade.Third, to provide cheap and effective means, including removable sealingstrips, to maintain the edges of the flexible web in such close contactwith an ordinary window frame as to prevent ingress of insects at such"edges, and, fourth, to so construct and arrange said sealing stripsthat they may be used in lieu of ordinary weather strips to seal thejoints between the sash and the window jambs when-the screens areremoved from their operative position.

My invention includes the various novel features of construction and.arrangement hereinafter more definitely specified.

In the drawing; Fig. I is a diagrammatic vertical sectional view of awindow frame Second,

provided with a convenient embodiment of my invention. 1

Fig. II is a complete perspective view of one of the screen webs and itsappurtenances indicated in Fig. I.

Fig. III is a fragmentary perspective view of one of the spring rollerscarrying a flexible foraminous web, as indicated in Fig. I.

Fig. IV is a fragmentary perspective View of one of the sealing stripsindicated in Fig. I. i

In said figures; the window frame 1 is provided with ordinary glazedsashes 2 and 3. It is to be understood that said sashes have theordinary appurtenant balancing devices so that they are detained in anyposition of vertical adjustment to which they may be manually moved.

Said sash 2 has its upper rail 4 detachably connected with the lower endof the flexible screen web 5, conveniently by the cross bar 6 which maybe attached to said rail 4.- by small tacks or screws and which may beattached to said web by adhesive. Said web 5 is conveniently formed of acheap grade of textile netting and has its opposite vertical edgesreinforced by tapes 8 which may be conveniently comparatively heavytextile material provided with a coating 9 which melts at a temperaturesomewhat above ordinary atmospheric temperature, and is then adhesive,but congeals at ordinary atmospheric temperature, so that it may bereadily heated and applied to said netting to reinforce the edgesthereof. The so called adhesive tape, which is used for surgicalbandages, will answer the purpose of that feature of my invention.

The upper end of said screen web 5 may be similarly reinforced by anadhesive tape 11 and said web thereby attached to the wooden roller 12,conveniently by small tacks 13 driven through said tape 11. Said roller12 has, at one end thereof, the stationary axial metallic trunnion 15conveniently in integral relation with the metallic cap 16 tightlyfitted on the end of said roller 12. The opposite nd of said roller 12is provided with the metallic cap 17, rigidly connected therewith, andhaving one or more hooked projections 18. Said cap has the axial opening19 as a bearing for the spring,

sh'aft20. Said shaft has rigidly secured thereon the collar 21 providedwith one or mo e hooke projections .22 arranged, in pposition to saidhooked projections 18 and thus adapted to interlock therewith when saidshaft 20 is shifted axially to engage said projections in opposition.However, said spring shaft 20 is normally thrust axially outward withrespect to said roller 12, as indicated in Fig. III, todisengage saidhooked projections 18 and 22, by the spiral spring 24, so that saidroller 12 may be turned upon said shaft and its trunnion 15 aforesaid,but, said spring is attached to said shaft at one end, conveniently byextension through the opening 25 in said shaft, and said springis-attached at its other end to said roller 12, conveniently by havingits end 26 extending parallel with its axis into the hole 27 in the bodyofsaid roller, and, when wound, said spring tends to wind said web uponsaid roller 12 when said shaft 20 is held stationary, and thusautomatically maintains said web taut in any position to which it may bewithdrawn from said roller. Said shaft 20 is conveniently flattened, atits outer end, as indicated at 28, so that it may be held stationarywhile said trunnion turns, when said roller is mounted in ordinarybrackets 30 and 31 used for sup-porting window shades.

It is to be understood that the function of said hooked projections 18and 22 is to interlock said roller 12 with said spring shaft 20, whensaid spring 24 is wound, so that the entire roller may then be readilyinserted in such ordinary shade brackets as above contempl-ated by firstinserting the flattened end of said shaft in the bracket and thenturning said roller, in the direction to unwind said web, sufiicientlyto disengage the hooked projections 18 from said hooked projections 22,while the latter are thus held stationary, and then permitting saidroller 12 to move axiallyunder the thrust of said spring 24 and engageits trunnion 15 in said bracket 31. That is to say; said brackets may bepermanently'attached to the window jambs at the top thereof and saidspring roller be inserted between them when the distance between itsopposite axial supports 15 and 28 is-minimized by the telescopingmovement of said spring shaft 20, and-then be axially extended intooperative relation as above described; said roller and its screen webbeing automatically detained in such operative position by the abovedescribed axial and torsional resilience of said spring 2 Said sash 3has its'lower rail 33 similarly attached to a flexible screen web 5mounted upon a spring roller 12 and constructed and arranged as abovedescribed.

Said sashes 2 and 3 and their respective screen webs 5 are so disposedthat, when the sashes are opened, said webs are drawn over the windowspaces thus opened, so as to screen them in planes respectively coinoidand the inner face of the lower sash 3.\

Therefore, I find it convenient to locate the sealing strips 35 for theupper sash upon the outer side thereof and the sealing strips 35 for thelower sash upon the inner side thereof. Said strips 35 are disposed inpairs at the opposite dges of the webs 5, so as to contact with themarginal reinforcing tapes 8 of the respective webs 5, in closeproximity to the side members of said window frame 1. I find itconvenient to form said strips of any slightly resilient sheet metal,with spring bights 36 and 37 at respectively opposite ends thereof; eachof said strips being initially bowed so that it tends to press againstthe side rails of the sash frames throughout its length. I also find itconvenient to attach each strip to the adjacent vertical member of thewindow frame by a single stud screw 38 extendingthrough a loop 39 formedin the end of the bight 36, the opposite end bight 37 of each stripbeing held in operative position by the similar stud 40, against whichsaid bight 37 slides. Moreover, although said stud screws 38 and 40 maybe directly detachably engaged with said window frame 1, a moresubstantial construction is afforded by mounting suitable studs in aplate 41; in which case, such plate may be attached to the window frameby other screws 42.

As indicated in Fig. I; said spring rollers 12 may be respectivelyprovided with hoods 45 and said brackets 30 and 31 may be mounted insuch hoods, which may be formed of pressed sheet metal.

However, I do not desire to limit myself to the precise details ofconstruction and arrangement herein set forth, as it is obvious thatvarious modifications may be made therein without departing from theessential features of my invention, as defined in the appended claims.

I claim: I a

1. In a window screen, the combination with a flexible web of textilematerial; of adhesive tapes, of textile material, reinforcing respectiveedges of said web; a hollow wooden roller: means connecting one end ofsaid web to said roller; a metallic trunnion extending axially inrigid'relation with said roller at one end thereof; a metallic cap atthe other end of said roller, having a clutch hooked projection.extending circumferentially in the direction in which said web isadapted to be wound upon said roller, and having an axial bearing; aspring shaft, extending in the hollow of said roller. journaled at itsinner end in said roller and journaled at its outer end in said bearing;a clutch collar rigidly mounted on said spring shaft and having a clutchhooked projection extending circumferentially in the direction in whichsaid Web is arranged to be unwound from said roller; means at the outerend of ing said roller, and adapted to be wound by unwinding movement ofsaid web and also adapted to thrust said shaft axially outward withrespect to said roller, to disengage said hooked projections when theyare released from each other; a bracket having a journal in which saidtrunnion may rotate; a bracket having a bearing in which said shaft maybe held against rotation; and a hood connecting said brackets andsecluding said I roller.

2. In a window screen, the combination with a flexible Web; of adhesivetapes, reinforcing respective edges of said web; a hollow roller; meansconnecting one end of said web to said roller; a trunnion extendingaxially in rigid relation with said roller at one end thereof; a cap atthe other end of said.

roller, having a clutch hooked projection, extending circumferentiallyin the direction in which said web is adapted to be wound upon saidroller, and having an axial bearing; a spring shaft, extending in thehollowof said roller, and journaled at its outer end in said bearing; aclutch collar rigidly mounted on said spring shaft and having a clutchhooked to disengage said hooked vprojections when they are released fromeach other; a bracket havinga journal in whichsaid trunnion may r0tate;and a bracket having a bearing in which said shaft may be held againstrotation.

3. In a window screen, the combination with a flexible web; of a hollowroller;

means connecting one end 'of said web to said roller; a trunnionextending axially from said roller at one end thereof; an axial hearingat the other end of said roller; a

clutch hooked projection, adjacent said bearing, extendingcircumferentially in the direction in which said web is adapted to bewound upon said roller; a spring shaft, extending inthe hollow of saidroller and j ournaled at its outer end in said bearing; a clutch collarrigidly mounted on said spring shaft and having a clutch hookedprojection extending circumferentially in the direction in which saidweb is arranged to be unwound from said roller; means on said springshaft,

arranged to prevent rotation thereof; a spiral spring in the hollow ofsaid roller, en-

, circling said shaft, having one end engaging said shaft and the otherend engaging said roller, and adapted to wind said web and also adaptedto thrust said shaft axially outward with respect to said roller, todisengage said hooked projections when they are released from eachother; a bracket having a journal in which said trunnion may r0- tate;and a bracket having a bearing in which said shaft may be held againstrotation.

4. In a window screen, the combination with a flexible web; of a hollowroller; means connecting one end of said web to said roller; a trunnionextending axially from said roller at one end thereof; an axial bearingat the other end of said roller; a clutch hooked projection, adjacentsaid bear-v ing, extending circumferentially in the direction in whichsaid web is adapted to be wound upon said roller; a spring shaft,extending in the hollow of said roller and journaled at its outer end insaid bearing; a clutch collar rigidly mounted on said spring-shaft andhaving a clutch hooked projection extending circumferentially in thedirection in which said web is arranged to be unwound from said roller;means on said spring shaft, arranged to prevent rotation thereof; aspiral spring in the hollow of said roller, encircling said shaft,having one end engaging said shaft and the other endengaging saidroller, and adapted to wind said web and also adapted to thrust saidshaft axially outward with respect to said roller, to disengage saidhooked projeetions when they are released from each other; a brackethaving ajournal in which said trunnion may rotate; and a bracket havinga bearing in which said shaft maybe held against rotation. j

5. The combination with a flexible web; of a hollow roller; meansconnecting one end of said web to said roller; a trunnion extendingaxially from said roller at one end thereof; an axial bearing at theother end of said roller; a clutch projection, on said roller, arrangedto engage in the direction in which said web is adapted to be wound uponsaid roller; a spring shaft, extending in the hollow ofsaid roller andjournaled at its outer end in said bearing; a clutch projection on saidspring shaft arranged to engage in the direction in which said web isarranged tobe unwound from said roller; means on said spring shaft.arranged to prevent rotation thereof; a spiral spring in the hollow ofsaid roller, encircling said shaft, having one end engaging said shaftand the other end engaging saidroller, and adapted to wind said web andalso adapted to thrust said shaft axially outward w h respect to saidroller, to disen age said projections when they are released rom eachother; a bracket havinga journal in which said trunnion may rotate; anda oracaet having a bearing in which said shaft may be held againstrotation.

6. Means arranged to resiliently hold the edges of a window screen insealed relation with a window frame, while permitting longitudinalmovement of said screen, including a base plate having means to attachit to the window frame; two screw studs on said base plate, projectingparallel with the plane of said screen; a sealing strip, of resilientmetal having a spring bight at each end, one spring bight pivotallyconnected to one of said screw studs, and the other spring bight insliding engagement with the other of said studs.

7. Means arranged to resiliently hold the edges of a Window screen insealed relation with a' window frame, while permitting I longitudinalmovement of said screen, in-

cluding a base plate having means to attach it to the window frame; withits plane in transverse relation with the plane of the screen; a sealingstrip, supported by sald base plate, having a resilient bight at eachend; two studs on said base plate holding said strip parallel with theplane of said screen, arranged to permit one end of said thereof.

8. Means arranged to resiliently hold the edges of a Window screen insealed relation with a window frame, while permitting longitudinalmovement of said screen, including a base plate having means to attachit to said frame; a sealing strip, sup- JOHN P. ooa

Witnesses:

ARTHURE. PAIGE.

CAROLYN E. REUTER.

strip to slide with respect to the other end

